Type-writing machine.



c. B. YAW. TYPE WRITING MACHINE. APPLICATION FILED APR. 22, 1909.

932,664. Patented Aug. 31, 1909 Hal.

. \/\/ITI\|E5 "5E'E1 INVENTEIR:

' Jada/31 4) MWG/ e I HISATTURNEY" UNITED A E PATENT-OFFICE.

one B. raw, or Anuneron, nnw'mnsnr, nssienon'ro nnmnve'ro'n rrrnwarrnn oonmnr,

or man, NEW roan, A conronlrrion or NEW-YORK.

'rYrE-wiu'rrno momma.

Specification of Letters Patent. Pateentd Aug. 3 1 p 1 909.-

, Application filed April 22, 1909. Serial no. 491,458.

useful Improvements in Type-Writing Ma-' chines, of wliiclrthe following is a specification. a

My invention relates to typewriting ma chines and more particularly to the construction of a type bar and to means for securing the type-carryingportion or type block to the bar proper, and for effecting an adjustment of the type block in order 'to aline the type.

The object of my invention is to provide a simple and efficient construction of the character specified and one which is easy to manufacture and cheap to construct.

To'the above and other ends which'will hereinafter appear, my invention consists in features of construction, combinations of devices and arrangements of parts to be here inafter described and particularly pointed out in the claims.

In the accompanying drawings,-Figure 1 is an enlarged detail side elevation of a type bar, constructed in accordance with my in- 'vention. Fig. 2 is a detail transverse sectional View taken through the securing por-- ti'on of the type bar on a line wa: of Fig. 1,

Fig. 2 being drawn on a larger scale. Fig. 3 is an enlarged detail end elevation of a type block constructed in accordance with my invention, the View showing the block before the sides of the bifurcated portion are pressed toward each other as represented in Fig. a. Fig. 4 is an enlarged detail end elevation of the type block as it appears just before it is applied to the bar. Fig. 5 is an enlarged detail transverse sectional view on a line wm of Fig. 1. V y

The body'or shank'l of a type bar is pro-.

I vided at its free end with a reduced portion 2 on which the type block is secured or mounted. A shoulder 3 is formed onthe body of the bar by an upwardly extending projection in the rear of the reduced portion 2 for purposeswhich will hereinafter appear. The securing portion 2 1s. tapered from the upper edge 4: to the bottom edge 5 thereof. In other words, the base on-widest portion of the taper is nearest thetype or types 6 on thebar, whereas the narrowest portion of the taper is farthest from the types. This construction provides inclined depth to form a slot 9, as represented in Fig.

3. The inner sidewalls 10 of the slot are parallel after the cut is made and the distance between the side walls at the bottom tvall ll of the slot corresponds substantially to the width of the edge 4 of the securing portion. The arms or leaves 12 of the bifurcated type block, formed by the slot therein, are then bent or pressed toward each other as represented in Fig. i.

In practice I prefer to make the slot 9; in the first instance, about ten hundredths of an inch in width and then to incline or taper the side arms or leaves 12 so that the width at the lower or open end of the slot 9 shall be about five hundredths of an inch. The securing portion of the bar I prefer to make about ten hundredths of an inch in width at the edge 4 and to taper the sides 7 down so that the lower edge 5 measures preferably about seven hundredths of an inch in width, thus leaving the lower edge 5 of the securing portion of the bar two hundredths of an inch thicker than the distance between the arms 12 of the type block at the lower free ends of said arm. The opening or slot 9 thus formed in the bifurcated type block is a dove-tail opening which corresponds generally to the form of the dovetail securing member 2 of the type bar, although the slot is slightly narrower, except at the wall 11 thereof, than the width of the securing portion of the bar.

The formation of the doveta1l openings in the manner described greatly facilitates the manufacture of the type blocks as it.

would be difficult, if not impracticable to cut the dove-tail openings in the bloclrs. hen the block is formed as shown in Fig.

'4.- it may be driven end'wise on to the securing member, the act of forcing the block on the securing member separating the arms 12 of theibifurcated portion and the inherent resiliency of the arms will clamp or -bind the side walls 7 of the securing portion from edge to-edge thereof and will retain the type a, block in the position to which it is adjusted along the securing portion, thus preventing accidental endwise displacement of the block on the bar. The. block may nevertheless be adjusted. by apair of pliers or a suitable tool along the securing portion of the bar in order to properly aline the type. If a block; is to be moved-toward the outer or free end ofthe bar the onej aw of the pliers -15 is placed on 'the'outer end of the type bar, the'other jaw engaging the rear end of the type block orthat end which is nearest the pivot of the 'typebar.v A compression of the liers'g-at this time will force the block tothe outer end of the bar. If, on the erFhand, the block is toJbe adjusted toard the pivot of the type bar, the one j aw f the-pliers is brought into coiiperation with H he-rear. side of the shoulder 3, the other I- -'j3,W engagingthe forward end of the type f "blOCk. A compression of thepliers at this time will movegthe block toward the pivot Let the type-'b'a'ii The securing portion 2 should be suificiently longer than the block to provide fore'the requisite adjustment of I the type block-j and to afford a purchase for the pliers at'the free end of the securing ortlon. v From the forego' description it will be 135 derstood that the ove-tail connection be- '.tw'eenf ,the carrying member and the body portion of the bar constitutes means wherelgy the typescarrying portion or block 8 is prevented from movin laterally with relation the bar, whereas t e clamping engagement between'the bifurcated portion of the typer carryiti r member and the bar constitute g means or/holdin the type carrier or block against longitudinal displacement on the {15; bar, and that no soldering; riveting or other ,i' 'means for securing the type block to the I )bar are necessary, the dove-tail and clamping connection formin the. sole. means forconnectin the type b ock to the bar and "for affor ing an adjustment of the type v block longitudinally of'the bar. Moreover, it .will be observed that by forming thenarrowest portion of-the taper of the securing member farthest from the types 6 on the type block, so that the 'widest portion of the base 4 cooperates with the bottom wall 1l .ofthe 'slot in the'type block, there is no tendency-to dislodge or affect, by the impact "ofthe types against the platen, the connectping-"means which unites the type block to ;thebar.'

From the foregoing description it will be seen that I have provided an extremely simtype block. orcarrier can be readily connected with or detached from'the body ortion of the type bar and may be adjusted at will for alining. the type; and in which, nevertheless, there is little liability of the type block or carrier being accidentally displaced from the bar or dislodged from its adjusted position.

What I-claim as new and desire to secure by Letters Patent, is t 1. A type bar with a securing portion having side walls which taper from one" edge of the bar to the other; and a detachable and adjustable type block having a slot extending therethrough, the side walls of the 'slot being inclined throughout to substantially match the tapering walls of the securing portion of the type bar. 7

2. A type bar having a securing portion that tapers-from the edge nearest the type to the edge farthest from the type; and a type an opening that conforms generally to but is slightly smaller than the securing portion of the bar before the block is applled to the bar, said bifurcated portion clampin the bar when the block is in place and ho ding the block against endwise displacement thereon.

block having a bifurcated portion forming 3. A type bar having a longitudinally extending securing portion of dove-tail formation in cross-section with the widest portion of the dove-tail nearest the type, the side walls being inclined from edge to edge; and a type block with a dove-tail opening therein to receive the dove-tail on the bar and connect the type block against lateral movement on the bar but to aiforda withdrawal of the block endwise from the bar or afford an adjustment of the block longitudinally on the bar, the dove-tail opening being formed by a bifurcation of the type block and conforming generally to but being slightly narrower than the securing portion of the type bar before the block is applied to the bar, said bifurcated portion clamping the bar when the block is in place and holding the block against endwise displacement thereon.

4:. A type bar having a longitudinally extending securing portion of dove-tail formation in cross-section with the widest portion of the dove-tail nearest the type, the side walls being inclined from edge to edge; a type block with a dove-tail opening therein to receive the dove-tail on the bar and connect the type block against lateral movement on the bar but to aiford a withdrawal of the block endwise from the bar or afford an adjustment of the block longitudinally on the bar the dove-tail opening being formed by a bifurcation of the type block and conform- 1' ing generally to but being-slightly narrower than the securing portion of the type bar be- .pleoandefiicient construction in which the fore the blockis appliedto the bar, said bifurcated portion clamping the bar when the of New York, in the county of New York,

block is in place and holding the block and State of New York, this 21st day of against endw-ise displacement thereon; and a April A. D. 1909.

shoulder on the bar adjacent to the type CLIO B. YAW. 5 block to aid in effecting sin adjustment of the type block.

I "Vitnesses i Signed at the borough of Manhattan, city M. F. HANNWEBER: CHARLES E. SMITH. 

